/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 17:43:54,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 17:43:54,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 17:43:54,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 17:43:54,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 17:43:54,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 17:43:54,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 17:43:54,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 17:43:54,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 17:43:54,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 17:43:54,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 17:43:54,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 17:43:54,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 17:43:54,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 17:43:54,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 17:43:54,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 17:43:54,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 17:43:54,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 17:43:54,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 17:43:54,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 17:43:54,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 17:43:54,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 17:43:54,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 17:43:54,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 17:43:54,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-12 17:43:54,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-12 17:43:54,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-12 17:43:54,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-12 17:43:54,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-12 17:43:54,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-12 17:43:54,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-12 17:43:54,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-12 17:43:54,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-12 17:43:54,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-12 17:43:54,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-12 17:43:54,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-12 17:43:54,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-12 17:43:54,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-12 17:43:54,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 17:43:54,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 17:43:54,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 17:43:54,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-12 17:43:54,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 17:43:54,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 17:43:54,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-12 17:43:54,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-12 17:43:54,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 17:43:54,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 17:43:54,889 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 17:43:54,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 17:43:54,889 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 17:43:54,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 17:43:54,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 17:43:54,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 17:43:54,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 17:43:54,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 17:43:54,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 17:43:55,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 17:43:55,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 17:43:55,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 17:43:55,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 17:43:55,158 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 17:43:55,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-08-12 17:43:55,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036b5407d/7bc9b09995e54799b0452b5f7a3c24e6/FLAG9d0607db2 [2021-08-12 17:43:55,666 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 17:43:55,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-08-12 17:43:55,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036b5407d/7bc9b09995e54799b0452b5f7a3c24e6/FLAG9d0607db2 [2021-08-12 17:43:55,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036b5407d/7bc9b09995e54799b0452b5f7a3c24e6 [2021-08-12 17:43:55,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 17:43:55,695 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 17:43:55,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 17:43:55,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 17:43:55,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 17:43:55,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:43:55" (1/1) ... [2021-08-12 17:43:55,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2ee588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:55, skipping insertion in model container [2021-08-12 17:43:55,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:43:55" (1/1) ... [2021-08-12 17:43:55,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 17:43:55,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 17:43:56,006 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-08-12 17:43:56,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:43:56,026 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 17:43:56,058 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-08-12 17:43:56,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:43:56,115 INFO L208 MainTranslator]: Completed translation [2021-08-12 17:43:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56 WrapperNode [2021-08-12 17:43:56,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 17:43:56,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 17:43:56,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 17:43:56,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 17:43:56,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 17:43:56,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 17:43:56,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 17:43:56,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 17:43:56,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... [2021-08-12 17:43:56,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 17:43:56,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 17:43:56,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 17:43:56,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 17:43:56,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 17:43:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-08-12 17:43:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-08-12 17:43:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-12 17:43:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-12 17:43:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 17:43:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 17:43:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 17:43:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 17:43:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 17:43:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 17:43:56,231 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 17:43:56,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 17:43:56,547 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-12 17:43:56,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:43:56 BoogieIcfgContainer [2021-08-12 17:43:56,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 17:43:56,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 17:43:56,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 17:43:56,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 17:43:56,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 05:43:55" (1/3) ... [2021-08-12 17:43:56,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a54b292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:43:56, skipping insertion in model container [2021-08-12 17:43:56,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:43:56" (2/3) ... [2021-08-12 17:43:56,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a54b292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:43:56, skipping insertion in model container [2021-08-12 17:43:56,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:43:56" (3/3) ... [2021-08-12 17:43:56,555 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-08-12 17:43:56,559 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 17:43:56,560 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 17:43:56,560 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 17:43:56,585 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,585 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,585 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,586 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,587 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,593 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,593 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,593 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,593 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,594 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:43:56,604 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 17:43:56,619 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-12 17:43:56,640 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 17:43:56,640 INFO L379 AbstractCegarLoop]: Hoare is true [2021-08-12 17:43:56,640 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 17:43:56,641 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 17:43:56,641 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 17:43:56,641 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 17:43:56,641 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 17:43:56,641 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 17:43:56,655 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 72 transitions, 154 flow [2021-08-12 17:43:56,731 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:43:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:43:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-12 17:43:56,745 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:43:56,746 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:43:56,746 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-12 17:43:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:43:56,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1204908705, now seen corresponding path program 1 times [2021-08-12 17:43:56,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:43:56,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040520569] [2021-08-12 17:43:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:43:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:43:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:43:57,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:43:57,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040520569] [2021-08-12 17:43:57,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040520569] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:43:57,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:43:57,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 17:43:57,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722874939] [2021-08-12 17:43:57,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 17:43:57,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:43:57,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 17:43:57,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:43:57,038 INFO L87 Difference]: Start difference. First operand has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:43:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:43:57,381 INFO L93 Difference]: Finished difference Result 3321 states and 9098 transitions. [2021-08-12 17:43:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:43:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-08-12 17:43:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:43:57,404 INFO L225 Difference]: With dead ends: 3321 [2021-08-12 17:43:57,404 INFO L226 Difference]: Without dead ends: 1205 [2021-08-12 17:43:57,410 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 119.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-12 17:43:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-08-12 17:43:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1106. [2021-08-12 17:43:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1103 states have (on average 2.524932003626473) internal successors, (2785), 1105 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:43:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 2785 transitions. [2021-08-12 17:43:57,506 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 2785 transitions. Word has length 35 [2021-08-12 17:43:57,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:43:57,507 INFO L482 AbstractCegarLoop]: Abstraction has 1106 states and 2785 transitions. [2021-08-12 17:43:57,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:43:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 2785 transitions. [2021-08-12 17:43:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-12 17:43:57,509 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:43:57,509 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:43:57,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 17:43:57,510 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-08-12 17:43:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:43:57,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1723552665, now seen corresponding path program 1 times [2021-08-12 17:43:57,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:43:57,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741809202] [2021-08-12 17:43:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:43:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-12 17:43:57,527 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-12 17:43:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-12 17:43:57,541 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-12 17:43:57,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-12 17:43:57,566 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-12 17:43:57,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 17:43:57,568 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-12 17:43:57,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.08 05:43:57 BasicIcfg [2021-08-12 17:43:57,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-12 17:43:57,613 INFO L168 Benchmark]: Toolchain (without parser) took 1918.33 ms. Allocated memory is still 230.7 MB. Free memory was 194.1 MB in the beginning and 143.9 MB in the end (delta: 50.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,614 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 230.7 MB. Free memory was 212.7 MB in the beginning and 212.5 MB in the end (delta: 221.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 17:43:57,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.19 ms. Allocated memory is still 230.7 MB. Free memory was 193.9 MB in the beginning and 193.7 MB in the end (delta: 140.2 kB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.22 ms. Allocated memory is still 230.7 MB. Free memory was 193.7 MB in the beginning and 192.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,615 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 230.7 MB. Free memory was 192.0 MB in the beginning and 190.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,615 INFO L168 Benchmark]: RCFGBuilder took 374.77 ms. Allocated memory is still 230.7 MB. Free memory was 190.6 MB in the beginning and 167.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,616 INFO L168 Benchmark]: TraceAbstraction took 1062.24 ms. Allocated memory is still 230.7 MB. Free memory was 167.2 MB in the beginning and 143.9 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2021-08-12 17:43:57,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 230.7 MB. Free memory was 212.7 MB in the beginning and 212.5 MB in the end (delta: 221.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 420.19 ms. Allocated memory is still 230.7 MB. Free memory was 193.9 MB in the beginning and 193.7 MB in the end (delta: 140.2 kB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.22 ms. Allocated memory is still 230.7 MB. Free memory was 193.7 MB in the beginning and 192.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 230.7 MB. Free memory was 192.0 MB in the beginning and 190.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 374.77 ms. Allocated memory is still 230.7 MB. Free memory was 190.6 MB in the beginning and 167.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1062.24 ms. Allocated memory is still 230.7 MB. Free memory was 167.2 MB in the beginning and 143.9 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [n=0, x=0] [L711] 0 int i; VAL [n=0, x=0] [L712] 0 x = 0 VAL [n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L686] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n VAL [n=1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L690] 1 reach_error() VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 928.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.3ms, AutomataDifference: 384.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 94.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 108 SDtfs, 286 SDslu, 383 SDs, 0 SdLazy, 80 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 119.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1669occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 84.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.8ms SsaConstructionTime, 49.9ms SatisfiabilityAnalysisTime, 172.6ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...